Means for suspending electric lights or gas or oil lamps



2 Sheets-Sheet 1.

(No Model.)

J. N. B. MOORE.

MEANS FOR SUSPENDING ELECTRIC LIGHTS OR GAS OR OIL LAMPS.

Patented Aug. 31, 1886.

(No Model.-)

2 Sheets-Sheet 2. J. N. B. MOORE.

MEANS FOR SUSPBNDING ELECTRIC LIGHTS 0R GAS OR OIL LAMPS. No. 348,407. Patented Aug. 31, 1886.

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inents.

UNTTED STATES PATENT OFFICE.

JOHN N. B. MOORE, OF HARTFORD, CONNECTICUT.

MEANS FOR SUSPENDING ELECTRIC LIGHTS 0R GAS 0R OIL LAMPS.

QPECIPICATION forming part of Letters Patent No. 348,407, dated August 31,1886.

Application filed January .23, 1886.

T0 aZZ whom it may concern.-

Be it known that I, JOHN N. B. MOORE, a subject of the Queen of Great Britain, residing at Hartford, in the county of Hartford and State of Connecticut, have invented new and useful Improvements in Means for Suspending Electric Lights or Gas or Oil Lamps, of which the following is a specification.

This invention relates to an electriclight mast, which, with slight modifications, may also be adapted for supporting gas oroil lamps; and the invention consists in certain novel featu res ofconstruetion and combinations of parts, which will be hereinafter particularly specified.

In the annexed drawings, illustrating the invention, Figure 1 is a side elevation of an electric-light mast embodying my improve- Fig.2 is a perspective view of the same, showing the lamp-support lowered near the ground ior oonvenience of giving it any requisite attention. Fig. 3 is a plan view, partly in section, on the line a; x of Fig. 1 and with the lamp removed. Figs. 4., 5, and 6 are detail views, to be hereinafter explained. Fig. 7 represents a modification, by which the mast is adapted to support a gas-light.

About seven feet (more or less) from the top of the mast 1 is fixed a cross-arm, 2, by means of a metallic strap, 3, which partly surrounds said mast. The ends of this strap 3 pass through the cross-arm 2, and also through socketed bearings 4, that receive the ends of a rod, 5, to which is pivoted a yoke, 6, that supports the mast-arm 7, as shown in Fig. 4.

Near each end of the crossarm 2 is secured a cleat, S, and to these cleats are attached guyrods 9, which extend to the outer end of the pivoted mast-arm. Beneath this mast-arm is a stay-rod, 10, one end of which is secured to the outer end of said arm, and the other end to a lug, 11., on the under side of the yoke 6. At or near the middle of the mast-arm 7 is fixed a T, 12, to which is attached a horizontal expander, 13, for the guy-rods 9, and a vertical expander, 14, for the stay-rod 10, said rods being tightened by turn-buckles or nuts 15 at either or both ends of the pivoted mast-- arm.

To the upper end of the mast l is secured a head or cap, 16, which supports a pulley, 17,

(No model.)

and a turn-table, 1.8, the latter being located above the pulley-support. The pulley 17 pro jects an inch or so at the rear side of the cap 16, and thus permits a free movement of a chain or rope, 19, one end of which is secured to a rod, 20, which extends to the forward end of the pivoted inast-arm, where it is securely attached. The rear end of the pull-rod 20 is secured by means of a loop, 21, to the upper forked end of a prop, 22, the lower end of which is hinged or pivoted to the fixed crossarm 2, and thus supports the pull-rod, to facilitate the working of the mast-arm and its connected counterbalance-weight. The form of this prop 22 is shown in Fig. 6.

To the lower end of the chain 19 is attached an elongated weight, 23, which is adapted to move in guides 24.,attached to the mast. This weight 23 is not quite sufficient to counter balance the pivoted mast-arm and attached lamp, and when the lamp is elevated the lowered weight is secured by means of any suitable fastening. A hoisting-rope, 25, is also attached to the weight 23 or to the chain 19, when required, and when the weight is lowered said weight 23 may be secured to a hook or other fastening, 26, thus holding the pivoted mast-arm and attached lamp in an elevated position. A lamp, 27, of any approved form, may be suspended from a forked lampsupporting arm, 28, at the outer end of the pivoted mast-arm.

The turn-table 18 consists of a fixed lower disk and a rotary upper disk connected by pins or bolts 29, as shown in Fig: 5, and the upper disk is provided with a socket, 30, for receiving a cross-arm, 31, which supports the line-wires. By removing the bolts or pins 29 the turn-table and attached arm 31 can be adjusted to any desired angle, according to the direction of the line-wires. If it is desired to employ this mast for suspending and extending a gas or oil lamp, the turn-table or linewire support can be dispensed with. \Vhen employed as a support for a gaslight, the pivoted mast-arm 7 will be made tubular or have a gas-pipe attached thereto, said pipe or tubular arm having a flexible connection, 32, with a gas-pipe, 33, secured to the mast 1, as shown in Fig. 7. This mast, with its pivoted arm, affords a safe and convenient means of elevating and extending an electric or other lamp in such a manner that the lamp will be readily accessible for all necessary purposes. It will be readily understood that, owing to the gravity of the counterbalance-weight 23, but little exertion is required to elevate the pivoted mast-arm 7 and attached lamp. This weight,

has also been composed of a mast having apulley at its upper end, a boom pivoted at one end to the mast, and a cable passing along the latter over the pulley and engaging a pulley block on the mast-arm to raise and lower it. Such prior constructions do not, however, constitute my invention.

Having thus described my invention, what I claim is 1. The combination, in an electrical-lamp support, of the upright mast having a pulley at its upper end, a mast-arm having its inner end pivotally connected with the mast and provided at its outer end with a lamp-supporting bracket, a chain or rope extending vertically along the mast and over the pulley and connected with the outer end of the'mastarm, and a weight secured to the lower end of the chain or rope, substantially as described.

2. The combination, with a mast having a pulley, a pivoted mast-arm or lamp-support, and guides on the mast, of a chain or rope connected with said pivoted mast-arm and an elongated weight attached to said chain and movable in the guides, substantially as described.

3. The combination, with a mast having a pulley at its upper end, of a cross-arm rigidly secured to the mast, socketed bearings attached to said cross-arm, a rod having its ends secured in the bearings, a lamp-supporting mastarm having a yoke at its inner end pivoted on the rod, a chain or rope passing vertically along the mast and over the pulley and connected with the mast-arm, and a weight secured to the lower end of the chain, substantially as described.

4. The combination of a mast having a pulley and a fixed crossarm, a pivoted mast-arm connected with said cross-arm, a pull-rod for the pivoted mast-arm, a prop for said pullrod, a chain or rope passed over the pulley and connected with said pull-rod, and a weight attached to said chain, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN N. B. MOORE.

Witnesses:

FRANK H. WVA'rsoN, XVILLIAM FRANCIS. 

